Detecting system using spectrum measurement device

Abstract

A detecting system using a spectrum measurement device and detecting an object is provided. The system includes: a sampling module and spectrum measurement devices assembled to the sampling module. The sampling module provides an illumination beam to the object and collects measurement beams reflected by the object to the spectrum measurement devices. The illumination beam has an illumination light waveband. The measurement beams have the illumination light waveband. The spectrum measurement devices include first and second spectrum measurement devices. The first spectrum measurement device includes a digital micromirror device. The measurement beams include first and second measurement beams transmitted to the first and second spectrum measurement devices respectively. The first spectrum measurement device detects a portion of the illumination light waveband of the first measurement beam, and at the same time the second spectrum measurement device detects another portion of the illumination light waveband of the second measurement beam.

What is claimed is: 
     
         1 . A detecting system using a spectrum measurement device and configured to detect an object, wherein the detecting system comprises: a sampling module and at least two spectrum measurement devices assembled to the sampling module, wherein
 the sampling module is configured to provide an illumination beam to the object and to collect at least two measurement beams reflected by the object to the at least two spectrum measurement devices, wherein the illumination beam has an illumination light waveband, and the at least two measurement beams have the illumination light waveband;   the at least two spectrum measurement devices comprise a first spectrum measurement device and a second spectrum measurement device, the first spectrum measurement device comprises a digital micromirror device, and the at least two measurement beams comprise a first measurement beam transmitted to the first spectrum measurement device and a second measurement beam transmitted to the second spectrum measurement device, wherein the first spectrum measurement device is configured to detect a portion of the illumination light waveband of the first measurement beam, and at the same time, the second spectrum measurement device is configured to detect another portion of the illumination light waveband of the second measurement beam.   
     
     
         2 . The detecting system using the spectrum measurement device according to  claim 1 , wherein a number of the at least two spectrum measurement devices is a plurality, a number of the at least two measurement beams is a plurality, and the plurality of spectrum measurement devices are configured to receive the plurality of measurement beams respectively and detect different portions in the illumination light wavebands of the plurality of measurement beams simultaneously. 
     
     
         3 . The detecting system using the spectrum measurement device according to  claim 1 , wherein the second spectrum measurement device comprises a digital micromirror device, the digital micromirror device of the second spectrum measurement device is the same as the digital micromirror device of the first spectrum measurement device, the first spectrum measurement device is configured to detect the portion of the illumination light waveband of the first measurement beam selected by the digital micromirror device, and the second spectrum measurement device is configured to detect the other portion of the illumination light waveband of the second measurement beam selected by the digital micromirror device, wherein the portion of the illumination light waveband and the other portion of the illumination light waveband are different wavebands or different wavelength values. 
     
     
         4 . The detecting system using the spectrum measurement device according to  claim 3 , wherein the portion in the illumination light waveband of the first measurement beam selected by the digital micromirror device of the first spectrum measurement device has a plurality of odd-numbered wavelength values, and the other portion in the illumination light waveband of the second measurement beam selected by the digital micromirror device of the second spectrum measurement device has a plurality of even-numbered wavelength values. 
     
     
         5 . The detecting system using the spectrum measurement device according to  claim 1 , wherein the second spectrum measurement device comprises a digital micromirror device, the digital micromirror device of the second spectrum measurement device is the same as the digital micromirror device of the first spectrum measurement device, after the first spectrum measurement device receives the first measurement beam, only the portion of the illumination light waveband of the first measurement beam is transmitted to the digital micromirror device of the first spectrum measurement device, and after the second spectrum measurement device receives the second measurement beam, only the other portion of the illumination light waveband of the second measurement beam is transmitted to the digital micromirror device of the second spectrum measurement device, wherein the portion of the illumination light waveband and the other portion of the illumination light waveband are different wavebands. 
     
     
         6 . The detecting system using the spectrum measurement device according to  claim 1 , wherein the detecting system further comprises at least two connecting devices, the at least two connecting devices comprise a first connecting device and a second connecting device, the first connecting device is connected between the first spectrum measurement device and the sampling module, and the second connecting device is connected between the second spectrum measurement device and the sampling module. 
     
     
         7 . The detecting system using the spectrum measurement device according to  claim 6 , wherein the at least two connecting devices are optical fibers respectively, and a length of each of the optical fibers is greater than or equal to 30 mm. 
     
     
         8 . The detecting system using the spectrum measurement device according to  claim 7 , wherein each of the optical fibers is a single-core optical fiber, and an optical fiber diameter of each of the optical fibers ranges from 600 μm to 1000 μm. 
     
     
         9 . The detecting system using the spectrum measurement device according to  claim 7 , wherein each of the optical fibers is a circular-to-linear optical fiber bundle, the circular-to-linear optical fiber bundles comprise three optical fiber cores, and a diameter of each of the three optical fiber cores is 600 μm. 
     
     
         10 . The detecting system using the spectrum measurement device according to  claim 7 , wherein each of the optical fibers is a circular-to-linear optical fiber bundle, the circular-to-linear optical fiber bundles comprise seven optical fiber cores, and a diameter of each of the seven optical fiber cores is 200 μm. 
     
     
         11 . The detecting system using the spectrum measurement device according to  claim 1 , wherein a number of the at least two spectrum measurement devices is a plurality, and the plurality of spectrum measurement devices are symmetrically distributed on the sampling module. 
     
     
         12 . The detecting system using the spectrum measurement device according to  claim 1 , wherein a distance between the sampling module and the object is greater than 0 mm. 
     
     
         13 . The detecting system using the spectrum measurement device according to  claim 1 , wherein the sampling module comprises: at least one illumination module, a light collecting element, and at least two light receiving modules, wherein
 the at least one illumination module provides the illumination beam;   the light collecting element has a first opening and an internal space, the at least one illumination module is disposed in the first opening, and the illumination beam is transmitted to the object in the internal space; and   the at least two light receiving modules are connected to the light collecting element, and each of the at least two light receiving modules comprises a housing and a lens element group disposed in the housing, wherein a distance between the sampling module and the object is greater than 0 mm, and the two measurement beams are transmitted from the object via the lens element group to enter the at least two spectrum measurement devices.   
     
     
         14 . The detecting system using the spectrum measurement device according to  claim 13 , wherein the at least one illumination module comprises a light-emitting element, a cup-shaped reflector, and a base, the base is disposed at a top of the light collecting element, the base has a second opening, the cup-shaped reflector is disposed in the second opening, the cup-shaped reflector has a third opening, the light-emitting element is disposed in the third opening, and the light-emitting element is configured to provide the illumination beam. 
     
     
         15 . The detecting system using the spectrum measurement device according to  claim 14 , wherein an optical axis of the light-emitting element is coaxial with a central axis of the cup-shaped reflector. 
     
     
         16 . The detecting system using the spectrum measurement device according to  claim 13 , wherein the light collecting element is a hollow cylindrical shell, and an inner wall of the light collecting element is a smooth reflective surface. 
     
     
         17 . The detecting system using the spectrum measurement device according to  claim 13 , wherein an inner wall of the housing of each of the at least two light receiving modules is a light-absorbing surface, and an absorbance is greater than or equal to 2. 
     
     
         18 . The detecting system using the spectrum measurement device according to  claim 13 , wherein the lens element group comprises a first lens element and a second lens element, the first lens element is located between the second lens element and the light collecting element, the first lens element is a meniscus lens element, and the second lens element is a biconvex lens element. 
     
     
         19 . The detecting system using the spectrum measurement device according to  claim 13 , wherein there is an angle between an extension axis of each of the at least two light receiving modules and an extension axis of the light collecting element, and the angle is greater than or equal to 25 degrees and less than or equal to 65 degrees. 
     
     
         20 . The detecting system using the spectrum measurement device according to  claim 13 , wherein a number of the at least two light receiving modules is the same as a number of the at least two spectrum measurement devices.